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Journal of Systems Engineering and Electronics

Issue 4 • Aug. 2012

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Displaying Results 1 - 23 of 23
  • [Front and back cover]

    Publication Year: 2012, Page(s):c1 - c4
    IEEE is not the copyright holder of this material | PDF file iconPDF (1582 KB)
    Freely Available from IEEE
  • [Front inside cover]

    Publication Year: 2012, Page(s): c2
    IEEE is not the copyright holder of this material | PDF file iconPDF (75 KB)
    Freely Available from IEEE
  • Contents

    Publication Year: 2012, Page(s):1 - 2
    IEEE is not the copyright holder of this material | PDF file iconPDF (204 KB)
    Freely Available from IEEE
  • Optimal antenna placement in distributed antenna systems

    Publication Year: 2012, Page(s):467 - 472
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (667 KB)

    To minimize the outage probability of the cell (OPC) in downlink distributed antenna systems with selection transmission, a complex-encoding genetic algorithm (GA) is proposed to find the optimal locations of the antenna elements (AEs). First, the outage probability at a fixed location in the cell is investigated. Next, an analytical expression of the OPC is derived, which is a function of the AE ... View full abstract»

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  • Blind estimation of phase offset in OFDM subcarrier for coherent demodulation

    Publication Year: 2012, Page(s):473 - 480
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1068 KB)

    An adaptive algorithm named low complexity phase offset estimation (LC-POE) is proposed for orthogonal frequency division multiplexing (OFDM) signals. Depending on the requirement, the estimation procedure is divided into several scales to accelerate the adaptive convergence speed and ensure the estimation accuracy. The true phase offset is estimated through shrinking the detection range and raisi... View full abstract»

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  • Direction finding of coexisted independent and coherent signals using electromagnetic vector sensor

    Publication Year: 2012, Page(s):481 - 487
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (682 KB)

    The existing direction of arrival (DOA) estimation algorithms based on the electromagnetic vector sensors array barely deal with the coexisting of independent and coherent signals. A two-dimensional direction finding method using an L-shape electromagnetic vector sensors array is proposed. According to this method, the DOAs of the independent signals and the coherent signals are estimated separate... View full abstract»

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  • Practical constrained least-square algorithm for moving source location using TDOA and FDOA measurements

    Publication Year: 2012, Page(s):488 - 494
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (703 KB)

    By utilizing the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements of signals received at a number of receivers, a constrained least-square (CLS) algorithm for estimating the position and velocity of a moving source is proposed. By utilizing the Lagrange multipliers technique, the known relation between the intermediate variables and the source location coor... View full abstract»

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  • Universal FRFT-based algorithm for parameter estimation of chirp signals

    Publication Year: 2012, Page(s):495 - 501
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (680 KB)

    The realization of the parameter estimation of chirp signals using the fractional Fourier transform (FRFT) is based on the assumption that the sampling duration of practical observed signals would be equal to the time duration of chirp signals contained in the former. However, in many actual circumstances, this assumption seems unreasonable. On the basis of analyzing the practical signal form, thi... View full abstract»

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  • New method of time-frequency representation for ISAR imaging of ship targets

    Publication Year: 2012, Page(s):502 - 511
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1439 KB)

    Inverse synthetic aperture radar (ISAR) imaging of ship targets is very important in the national defense. For the high maneuverability of ship targets, the Doppler frequency shift of the received signal is time-varying, which will degrade the ISAR image quality for the traditional range-Doppler (RD) algorithm. In this paper, the received signal in a range bin is characterized as the multi-compone... View full abstract»

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  • Novel reference range selection method in InISAR imaging

    Publication Year: 2012, Page(s):512 - 521
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (915 KB)

    Aiming at the reference range selection for different antennas in interferometric inverse synthetic aperture radar (InISAR) systems, this paper proposes a respective focusing (RF) method. The reference ranges for echoes of different antennas are selected respectively for RF, which is different from the traditional uniform focusing (UF) with the same reference range applied to all the antennas. Fir... View full abstract»

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  • Novel polarization filter design for wideband radar

    Publication Year: 2012, Page(s):522 - 528
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (805 KB)

    Usually the polarization of the interference and the target backscattering may vary constantly, so the optimal receiving polarization of the polarization filter should be recalculated, which makes the filter realization very difficult. Also the predict method of the necessary parameters is not explained in most papers, which makes the polarization filter realization impossible. A novel modified in... View full abstract»

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  • Optimizing polyphase sequences for orthogonal netted radar systems

    Publication Year: 2012, Page(s):529 - 535
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (577 KB)

    Orthogonal netted radar systems (ONRS) can fundamentally improve the radar performance by using a group of specially designed orthogonal polyphase code signals which require a very low aperiodic autocorrelation peak sidelobe level, low aperiodic cross-correlation, and a good resilience to small Doppler shifts. However, the existing numerical solutions degrade severely in the presence of small Dopp... View full abstract»

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  • Hybrid hierarchical trajectory planning for a fixed-wing UCAV performing air-to-surface multi-target attack

    Publication Year: 2012, Page(s):536 - 552
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2862 KB)

    This paper considers the problem of generating a flight trajectory for a single fixed-wing unmanned combat aerial vehicle (UCAV) performing an air-to-surface multi-target attack (A/SMTA) mission using satellite-guided bombs. First, this problem is formulated as a variant of the traveling salesman problem (TSP), called the dynamic-constrained TSP with neighborhoods (DCTSPN). Then, a hierarchical hy... View full abstract»

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  • Validation methodology for distribution-based degradation model

    Publication Year: 2012, Page(s):553 - 559
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (643 KB)

    Distribution-based degradation models (or graphical approach in some literature) occur in a wide range of applications. However, few of existing methods have taken the validation of the built model into consideration. A validation methodology for distribution-based models is proposed in this paper. Since the model can be expressed as consisting of assumptions of model structures and embedded model... View full abstract»

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  • Differently implicational α-universal triple I restriction method of (1, 2, 2) type

    Publication Year: 2012, Page(s):560 - 573
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (300 KB)

    From the viewpoints of both fuzzy system and fuzzy reasoning, a new fuzzy reasoning method which contains the α-triple I restriction method as its particular case is proposed. The previous α-triple I restriction principles are improved, and then the optimal restriction solutions of this new method are achieved, especially for seven familiar implications. As its special case, the corr... View full abstract»

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  • Interval-valued intuitionistic fuzzy aggregation operators

    Publication Year: 2012, Page(s):574 - 580
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (256 KB)

    The notion of the interval-valued intuitionistic fuzzy set (IVIFS) is a generalization of that of the Atanassov's intuitionistic fuzzy set. The fundamental characteristic of IVIFS is that the values of its membership function and non-membership function are intervals rather than exact numbers. There are various averaging operators defined for IVIFSs. These operators are not monotone with respect t... View full abstract»

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  • Design and simulation of fault diagnosis based on NUIO/LMI for satellite attitude control systems

    Publication Year: 2012, Page(s):581 - 587
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (475 KB)

    This paper presents a scheme of fault diagnosis for flexible satellites during orbit maneuver. The main contribution of the paper is related to the design of the nonlinear input observer which can avoid false alarm arising from the disturbance from orbit control force. The effects of orbit control force on the fault diagnosis system for satellite attitude control systems, including the disturbing ... View full abstract»

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  • Constrained cooperative control design for distributed morphing wing systems

    Publication Year: 2012, Page(s):588 - 595
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (663 KB)

    An efficient design method is proposed for the cooperative control problem of morphing wing systems with distributed structures and bounded control inputs. The multi-agent model of the distributed morphing wing system is established. The cooperative controllers with saturation constraints are presented. By introducing the concepts in consensus algorithms, the cooperative information links in the c... View full abstract»

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  • Krein space approach to robust H filtering for linear uncertain systems

    Publication Year: 2012, Page(s):596 - 602
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (428 KB)

    A novel Krein space approach to robust H∞ filtering for linear uncertain systems is developed. The parameter uncertainty, entering into both states and measurement equations, satisfies an energy-type constraint. Then a Krein space approach is used to tackle the robust H∞ filtering problem. To this end, a new Krein space formal system is designed according to the... View full abstract»

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  • Mitigating end effects of EMD using non-equidistance grey model

    Publication Year: 2012, Page(s):603 - 611
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1183 KB)

    Aiming at mitigating end effects of empirical mode decomposition (EMD), a new approach motivated by the non-equidistance grey model (NGM) termed as NGM(1,1) is proposed. Other than trapezoid formulas, the cubic Hermite spline is put forward to improve the accuracy of derivative to the accumulated generating operation (AGO) series. Hopefully, it is worth stressing that the proposed NGM(1,1) model i... View full abstract»

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  • New method for detection fusion of MAC based on DCM and NP rule

    Publication Year: 2012, Page(s):612 - 617
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (766 KB)

    The problem of distributed detection fusion using multiple sensors for remote underwater target detection is studied. Considering that multiple access channel (MAC) schemes are able to offer high efficiency in bandwidth usage and consume less energy than the parallel access channel (PAC), the MAC scheme is introduced into the underwater target detection field. The model of underwater distributed d... View full abstract»

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  • Adaptive nonuniformity correction for IRFPA sensors based on neural network framework

    Publication Year: 2012, Page(s):618 - 624
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (867 KB)

    For infrared focal plane array sensors, imagery is degraded during signal acquisition, particularly nonuniformity. In this paper, an adaptive nonuniformity correction technique is proposed which simultaneously estimates detector-level and readout-channel-level correction parameters using neural network approaches. Firstly, an improved neural network framework is designed to compute the desired out... View full abstract»

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  • [Inside back cover]

    Publication Year: 2012, Page(s): c3
    IEEE is not the copyright holder of this material | PDF file iconPDF (83 KB)
    Freely Available from IEEE

Aims & Scope

Journal of Systems Engineering and Electronics reports the latest developments and achievements in both theoretical and practical aspects of systems engineering, electronics and related research areas.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Professor Rong Shi
Journal of Systems Engineering and Electronics